Like any plastic, window seals are subject to an aging process. This aging can be slowed down significantly if window seals are properly cared for. In this guide we show you a number of tips on how to clean and care for your window seals.
Various seals on the window
On every window that you can open there is a seal between the sash and the window frame. But a window seal can even be trapped between the glass and the window frame. But there are not only different seals depending on the position on the window. The materials can also differ significantly from one another:
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- soft, rubber-like window seals in the shape of a bead
- relatively hard seals that almost look like solid plastic
- Seals with several sealing lamellae
Gently clean window seals
The art of maintaining a window rubber for as long as possible lies in cleaning it often enough, but not too often. Because the cleaning agents can attack the plastic. Many cleaners can react chemically to the plastic and make it porous and brittle. Depending on how often you open or. how long they are open, you should clean the window seals every one and two years. Use weak detergents for cleaning, which you dilute strongly with clear water.
Silicone spray - yes or better not?
The seals are then rubbed off with a dry cloth. When it comes to further care, opinions differ greatly in some cases. There are institutions like Stiftung Warentest that say you shouldn't use silicone spray to keep the seals supple. Seal manufacturers, on the other hand, advise exactly the opposite.
It depends on the poetry
First of all: You should only spray silicone window rubbers that are made of harder plastic, e.g. lamellar seals. But advising against it has nothing to do with poetry as such. Rather, it is about the fact that silicone spray accidentally sprayed onto window frames and glass surfaces is very difficult to remove. We therefore recommend holding a piece of cardboard to protect it.
Care tips: graphite, deer talc fat and other products
Still other recommendations are for graphite. However, graphite can turn black, which would be anything but beneficial with white plastic or lacquered windows. The main concern here is the maintenance of soft, rubber-like window seals. Instead, we recommend products that are also effective for car door rubbers. These include petroleum jelly or, even better, deer talc fat from the grease stick. You can get this in a specialist shop.Tips & Tricks However, you cannot save your window rubbers against aging and becoming brittle in the long term. You should replace the window rubbers every 10 to 15 years. Here we explain the best way to proceed when removing the window seal.